EP3655714A1 - Réfrigérateur à évaporateur à écoulement de contournement - Google Patents

Réfrigérateur à évaporateur à écoulement de contournement

Info

Publication number
EP3655714A1
EP3655714A1 EP18740535.2A EP18740535A EP3655714A1 EP 3655714 A1 EP3655714 A1 EP 3655714A1 EP 18740535 A EP18740535 A EP 18740535A EP 3655714 A1 EP3655714 A1 EP 3655714A1
Authority
EP
European Patent Office
Prior art keywords
evaporator
projection
refrigerating appliance
buffer
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18740535.2A
Other languages
German (de)
English (en)
Other versions
EP3655714B1 (fr
Inventor
Benjamin Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL18740535T priority Critical patent/PL3655714T3/pl
Publication of EP3655714A1 publication Critical patent/EP3655714A1/fr
Application granted granted Critical
Publication of EP3655714B1 publication Critical patent/EP3655714B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/065—Details
    • F25D23/067—Supporting elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0071—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2240/00—Spacing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/28—Safety or protection arrangements; Arrangements for preventing malfunction for preventing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining

Definitions

  • the present invention relates to a refrigerator with a circulated by the air of a storage room and tires exposed by auskondensierender from this moisture evaporator.
  • DE 10 2014 223 571 A1 shows a refrigeration device in which the evaporator before its installation in the refrigerator a compensation layer is suspended so that it fills a gap between a broadside of the evaporator and an opposite wall of the evaporator housing after installation and there the emergence prevented by ice bridges.
  • a compensation layer is suspended so that it fills a gap between a broadside of the evaporator and an opposite wall of the evaporator housing after installation and there the emergence prevented by ice bridges.
  • the object of the invention is to provide a refrigeration device which is protected in a simple manner against an excessive occurrence of cracking noises.
  • the object is achieved by having a refrigeration device, in particular a household refrigerator, with an evaporator chamber, housed in the evaporator chamber evaporator and at least one between a flank of the evaporator and a wall of the evaporator chamber arranged elastic buffer of the molding of a softer material than the the evaporator housing is and is connected to the evaporator housing via at least a first projection and a recess receiving the first projection and contacting surfaces of the first projection and the recess in a longitudinal direction of the first projection are movable against each other.
  • a refrigeration device in particular a household refrigerator
  • the projection is part of the evaporator housing and engages in the recess of the buffer.
  • the evaporator housing and the buffer can have a second projection and a second recess which engage each other transversely to the longitudinal direction of the first projection. A detachment of the buffer from the evaporator housing is then possible only with simultaneous deformation of the buffer.
  • the differently oriented projections may be distributed to a main wall and to a side wall of the evaporator housing connected to the main wall via an edge. Thus, both projections can protrude substantially from the supporting wall of the evaporator housing.
  • the buffer may have a voltage applied to the side wall first edge and a voltage applied to the main wall second edge.
  • the buffer may be tapered in a wedge shape in a direction away from the second flank.
  • the inner area may converge toward the bottleneck.
  • the above mentioned sealing edge can fit in the inner area, i. the recess receiving the recess may be the first recess.
  • the buffer is preferably shaped as a bypass blocker which tightly seals a gap between the flank of the evaporator and the wall of the evaporator housing.
  • FIG. 1 shows a schematic section through an inventive refrigeration device.
  • Fig. 2 is a schematic section through another inventive
  • 3 shows an evaporator housing of the refrigeration device; 4 shows a detail of the evaporator housing.
  • Fig. 5 shows the detail of Fig. 4 and used for its manufacture
  • the evaporator chamber 5 contains a finned evaporator 1 1.
  • the fins of the evaporator 1 1 parallel to the sectional plane of Fig. 1st Between the rear wall 7 and its edges facing a few millimeters wide gap extends to the formation of ice bridges between the slats and the rear wall. 7 counteract; a corresponding gap is also provided between the main wall of the evaporator housing 8 and its facing edges of the fins.
  • the gaps may be empty or, as known from DE 10 2014 223 571 A1, contain an equalization layer.
  • Semicircular arcs 19 of a refrigerant tube crossing the slats project from the outer slat facing the viewer in FIG. 1 toward the viewer.
  • a fan 12 is mounted in one passage of the evaporator housing 8.
  • the fan 12 draws air from the storage chamber 1 via a passage 13 below the lower edges of the evaporator housing 8 and the wall plates 10 through the evaporator 1 1 and ejects them into the distribution chamber 9.
  • baffles the air passes from the distribution chamber 9 through openings of the wall plate 10 back into the storage chamber 1 or first in the storage chamber 2 and from there back into the storage chamber 1, from where they again is sucked.
  • a defrost heater 14 is mounted under the evaporator 1 1 in the evaporator chamber 5.
  • the two storage chambers 1, 2 may be flowed through in series by the cold air from the evaporator chamber 5, as shown for example in Fig. 2.
  • the storage chambers 1, 2 and the evaporator chamber 5 share a common inner container 6.
  • a removable horizontal partition plate 50 divides the space surrounded by the inner container 6 space in an upper and a lower part. The lower part is divided by the evaporator housing 8 and the wall panel 10 in the evaporator chamber 5, distribution chamber 9 and storage chamber 1.
  • a the evaporator housing 8 upwardly extending wall plate 51 defines a on the rear wall 7 along the storage chamber 2 to the evaporator chamber 5 extending intake channel.
  • FIG. 3 shows the evaporator housing 8 of the refrigeration device from FIG. 1 in a perspective view.
  • the contours of the evaporator 1 1 are transparent hineinge réelle in the evaporator housing 8.
  • the already mentioned main wall is designated 20.
  • In an upper region of the main wall 20 there is an opening 21, in front of the fan chamber 12 in the distribution chamber 9 finds place.
  • Below the opening 21 a plurality of narrow ribs 22 are formed to keep open the gap between the evaporator 1 1 and the main wall 20 and to prevent large-scale freezing of the evaporator 1 1 on the main wall 20.
  • the evaporator housing 8 of the refrigerator of Figure 2 may be identical to the above-described except for its installation position. i.e. the bottom wall 24 is in the installed state at the top and forms a ceiling of the evaporator chamber, the evaporator 1 1 is flowed through from top to bottom, and the opening 21, on which the fan 9 is mounted, is located below the evaporator 1 first
  • the distance between the outer fins 26 of the evaporator 1 1 and the side walls 23 is considerably larger than the distance between the fins with each other.
  • a bypass blocker To prevent air between the outer fins 26 and the side walls 23 flows through and the evaporator 1 1 bypasses, must be closed on both sides of the evaporator 1 1, the gap between the outer blades 26 and the side walls 23 by a bypass blocker.
  • Fig. 3 does not show the bypass blocker but on one of the side walls 23 projections 27, 28, which serve to anchor such a bypass blocker. 4 is an enlarged view of these protrusions 27, 28.
  • the projection 27 is a narrow mandrel which, starting from the main wall 20, is perpendicular to this, i. in the depth direction of the housing 4, projects into the evaporator chamber 5.
  • the projection 28 extends at right angles to the projection 27, in the width direction of the housing 4, from the side wall 23. He has a narrowing with increasing distance from the main wall 20, triangular or Y-shaped cross-section.
  • a passage 29 is recessed in each side wall 23.
  • This passage 29 is provided to pass, as shown in Fig. 5 during injection molding of the evaporator housing 8, a mold member 30 which forms one of the side wall 23 facing flank 31 of the projection 27.
  • the remaining flanks of the projection 27 and the projection 28 may be formed by a single second mold part 32, which is movable in opposite directions to the mold part 30.
  • the passage 29 is bounded by a sealing edge 33 protruding into the evaporator chamber 5 from the side wall 23.
  • Figs. 6 and 7 show the buffer 35 for attachment to the projections 27, 28.
  • the buffer 35 is a molding of silicone or thermoplastic elastomer.
  • the outer shape of the buffer 35 is that of a prism having three rectangular flanks 36, 37, 38 and triangular faces 39, 40. The narrowest of the three flanks, 36, is provided to abut the main wall 20 when assembled.
  • a recess 41 of the flank 36 is formed complementary to the projection 27.
  • a second recess 42 is articulated in an inner region 43 which is open to both the flank 36 and the end face 39 and wedge-shaped constricted by the flank 36, an outer region 44 which is open to the end face 39, and a the areas 43, 44th connecting bottleneck 45.
  • the approximately triangular cross-section of the outer region 44 is dimensioned so that the projection 28 fits under any slight clamping. However, both together in the longitudinal direction of the projection 28 is not possible, this prevents the projection 27th
  • the buffer 35 is plugging in the longitudinal direction of the projection 27.
  • the projection 28 first passes over the side of the recess 42 which is open towards the flank 36 in its inner region 43. Walls converging towards the constriction 45 46 of the inner region 43 may facilitate the engagement of the projection 28 in the bottleneck 45.
  • the bottleneck 45 is narrower than the projection 28; therefore, the buffer 35 is elastically expanded during the passage of the projection 28 through the constriction 45.
  • the buffer 35 relaxes again by bringing the walls of the bottleneck 45 back towards one another and thus blocking the projection 28 from returning to the bottleneck 45. Since sliding in the longitudinal direction of the projection 28 is blocked by the engagement of the projection 27 in the recess 41, the buffer 35 is securely fixed to the evaporator housing 8.
  • To secure the buffer 35 may further contribute that the rib 34 engages around an edge 47 of the buffer 35 opposite the edge 36 at one end.
  • Another way to assemble the buffer 35 is to guide it obliquely against the main wall 20, so that initially a limited by the flank 36 and the end face 40 edge 48 touches the main wall 20 and the projection 27 engages in the recess 41 , and then pivot the buffer 35 about this edge 48 until the flank 36 abuts the main wall 20 and the end face 39 abuts the side wall 23.
  • the projection 28 first enters the inner region 43 and temporarily spreads the constriction 45 before it engages in the outer region 44.
  • FIG. 8 and 9 show sections through the buffer 35 mounted on the evaporator housing 8 along the plane VIII-VIII of FIG. 5 and along the sectional plane of FIG. 5.
  • a groove 49 into which the sealing edge 33 engages to seal the passage 30 watertight.
  • the projection 27 is frictionally clamped between two sides of the recess 41; the flank 31 or an opposite flank of the projection 27 is spaced from the walls of the recess 41 to allow the above-described pivotal movement about the edge 48.
  • the housing 4 When assembling the refrigerator shown in Fig. 1, the housing 4 is first assembled from outer walls and inner container 6, and the evaporator 1 1 is inserted into the inner container, wherein connection lines of the evaporator 1 1 through an initially empty space between the outer walls and the inner container 6 run. By foaming the gap, the housing 4 is stabilized, and the leads are firmly embedded. Subsequently, the evaporator housing 8 is mounted in the inner container 6. This assembly is complicated by the fact that the evaporator housing 8 blocks the view of the evaporator 1 1. According to the invention, the correct placement of the evaporator housing 8 still succeeds with the aid of the previously attached to its two side walls 23 buffers 35.
  • Fig. 10 shows, seen from the direction of the rear wall 7, the engagement of one of the buffer 35 between the pipe bends 19 at an edge of the evaporator 1 first
  • the flanks 37, 38 each touch a pipe bend 19, the end face 40 abuts the outer fin 26.
  • the edge 47 shown exposed in FIG. 9 bears against the rear wall 7 omitted in FIG. 9, so that the buffer 35 acts as a bypass blocker which completely or almost completely closes the gap between the outer lamella 26 and the side wall 23.
  • the refrigerator prevail in the evaporator chamber 5 usually temperatures below 0 ° C, at which the blade 26 or the pipe bends 19 can freeze to the buffer 35.
  • the buffer 35 can this first by a shearing deformation between the edges 36, 37 on the one hand and the inner surfaces of the recesses 41, 42 on the other hand compensate; if the tension forces exceed the friction between the inner surfaces of the recesses 41, 42 and the projections 27, 28, then the latter can noiselessly reduce the tension by sliding against each other before it becomes large enough to deform the evaporator housing 8 and, if the ice between the evaporator 1 1 and the buffer 35 breaks, to make it snap back noisily in its relaxed form.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

Un réfrigérateur comprend une chambre d'évaporateur (5), un évaporateur (11) logé dans la chambre d'évaporateur (5) et au moins un tampon élastique (35) disposé entre un flanc de l'évaporateur (11) et une paroi (23) de la chambre d'évaporateur (5). Le tampon (35) est une pièce moulée constituée d'un matériau plus souple que celui d'un boîtier d'évaporateur (8) délimitant la chambre d'évaporateur (5). Il est relié par enfichage au boîtier de d'évaporateur (8) par le biais d'au moins une première saillie (28) et d'un évidement (42) recevant la première saillie (28). Les surfaces en contact mutuel de la première saillie (28) et de l'évidement (42) sont mobiles l'une par rapport à l'autre dans une direction longitudinale de la première saillie (28).
EP18740535.2A 2017-07-20 2018-07-05 Réfrigérateur à évaporateur à écoulement de contournement Active EP3655714B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18740535T PL3655714T3 (pl) 2017-07-20 2018-07-05 Urządzenie chłodzące mające parownik z przepływem cyrkulacyjnym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017212423.7A DE102017212423A1 (de) 2017-07-20 2017-07-20 Kältegerät mit umströmten Verdampfer
PCT/EP2018/068202 WO2019015977A1 (fr) 2017-07-20 2018-07-05 Réfrigérateur à évaporateur à écoulement de contournement

Publications (2)

Publication Number Publication Date
EP3655714A1 true EP3655714A1 (fr) 2020-05-27
EP3655714B1 EP3655714B1 (fr) 2021-04-28

Family

ID=62909498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18740535.2A Active EP3655714B1 (fr) 2017-07-20 2018-07-05 Réfrigérateur à évaporateur à écoulement de contournement

Country Status (5)

Country Link
EP (1) EP3655714B1 (fr)
CN (1) CN111133264B (fr)
DE (1) DE102017212423A1 (fr)
PL (1) PL3655714T3 (fr)
WO (1) WO2019015977A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI981693A1 (it) * 1998-07-22 2000-01-22 Whirlpool Co Frigorifero con evaporatore posto nel cielo del vano di conservazione
BRPI0401588A (pt) * 2004-04-14 2005-11-22 Multibras Eletrodomesticos Sa Elemento fixador de evaporador
CN102494468B (zh) * 2011-12-02 2013-09-25 合肥美的电冰箱有限公司 一种制冷设备
CN202393153U (zh) * 2011-12-10 2012-08-22 林勇 一种分体电冰箱
DE202014009192U1 (de) * 2014-11-19 2014-11-26 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit zwangsdurchlüftetem Verdampfer
DE102014223571A1 (de) 2014-11-19 2016-05-19 BSH Hausgeräte GmbH Kältegerät mit zwangsdurchlüftetem Verdampfer
DE202015000328U1 (de) * 2015-01-15 2015-02-06 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät

Also Published As

Publication number Publication date
PL3655714T3 (pl) 2021-11-08
CN111133264A (zh) 2020-05-08
WO2019015977A1 (fr) 2019-01-24
EP3655714B1 (fr) 2021-04-28
DE102017212423A1 (de) 2019-01-24
CN111133264B (zh) 2022-06-28

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